Welcome to Zungo App Studio
My name is Andrias Hammer, and I personally compile every line of lightweight desktop code inside the **Zungo App** suite.
I engineered this platform to deliver high-performance, standalone retail solutions that run 100% offline with zero monthly fees. Download a free demo of Zungo Receipt PRO or Zungo Invoice PRO today to experience absolute data protection for your retail counters.
My Story: From the North Atlantic to Kenya
Hello, my name is Andrias Hammer. My journey as an independent desktop software programmer spans from the remote, wind-swept Faroe Islands in the North Atlantic all the way to the vibrant retail hubs of Kenya.
When I arrived in Kenya, local retail counter operators and kiosk owners playfully welcomed me with the nickname "Mzungu". Instead of seeing it as just a word for a foreigner, I saw a unique branding opportunity. I took that local identity, trimmed it down to its sharpest corporate form, and created **Zungo**—a dedicated offline software studio engineered to protect the daily profits of small businesses.
I noticed that many small shops, wholesale kiosks, and hardware counters struggle constantly with unstable internet connections, slow web portals, and expensive monthly cloud subscriptions. That is why **I made a firm choice to code standalone desktop apps that run 100% offline**. By engineering solutions like Receipt PRO with built-in data backups and direct registration gates, I give you absolute data ownership with zero monthly fees. I compile every single line of code myself, and I stand behind your retail counter setup every step of the way.
Try Before You Buy – Download a Free Demo
Experience the speed and simplicity of Zungo apps on your own computer. All standalone desktop installations run 100% offline with zero internet data requirements. Built for Windows PC & Laptops.
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Receipt PRO
Fast sales tracking and quick receipt logging for small counters. Features my new Forced Auto-Backup on Exit safety loop.
Invoice PRO
Complete network system built for invoicing, stock tracking, logs, supplier management, and security cash register roles.
nWindow
Transform monitor displays or huge 32" to 100" shop Smart TVs into dynamic ad billboard loops natively without dongles!
Zungo flyerCREATOR
Create scalable marketing flyers instantly and print them seamlessly using standard A4 desktop printers from pocket A6 sizes up to giant A0 wall banners.
Business Card Creator
Perfect for quick identity building, sales networking, and staff registries.
Ksh 1,000
Zungo BarcodeExpress
Design your barcode labels quick and easy. Print 24, 33 or 65 labels per sheet.
Ksh 3,600
Zungo Besa PRO
Take absolute control of your cash flow. Log all your in-and-out expenses on a lightweight desktop app built to protect your bottom line. Buy once, keep for life.
Zungo Counter Toolkit
F R E E W A R E
3-in-1 Utility Suite: CashFolat Balancer, M-Pesa Fees & Margin Calculator, and continuous 58mm Shelf-Tag Barcode Printer.
👀 Zungo Product Demonstration Videos
Transparent Pricing — Buy Once, Keep For Life
All my professional applications run 100% offline with zero monthly subscription bills or internet fees.
Zungo Receipt PRO
Perfect for small counters, retail kiosks, and local wholesale desks. Use it together with Zungo StockTake PRO (comming soon), and you have a full system.
One-Time Payment
- 🔒 Forced Auto-Backup on Exit (Zero Risk)
- 🖨️ Prints Corporate A4 Receipts
- 📊 Instant Daily Finance Summaries
- 🔐 Built-In Secure ID Activation
- 🚫 No Internet Required & Zero Fees
Invoice PRO - TouchPOS
Optimized for single-computer setups. Includes self-configured local network sync for up to 5 checkouts (see User Guide). Fully offline. (Was Ksh 50,000!)
One-Time Payment
- 🌐 Multi-User Network Synchronized
- 🕹️ Includes Database Locator Utility
- 📦 Real-Time Stock Control & Logs
- ➕ Extra Network Node Token: Ksh 3,500 per additional PC (up to 10 total counters)
- 🔐 4 Security Roles (Cashier, Sale, Office, SuperUser)
- 🍽 Cafe+ Premium Module Add-on: Ksh 7,500 one-time for full hospitality & table
- 📋 Massive 85-Page Operation Manual
nWindow Display
Turn store monitors into continuous offline commercial loops. Can run on multiple screens TV's simultaneously. Fully Offline Ad Loop Management. (Was Ksh 30,000!)
One-Time Payment
- 📺 Built-In Wireless Casting (No Dongle Needed for Smart TVs!)
- 📺 Wireless HDMI Support (32" to 100" TVs)
- 📺 Continuous Video Display Sequences
- ⚙️ Lightweight 11.7 MB Package
- 📋 Fully Offline Ad Loop Management
- 🔑 Built-In Secure ID Framework
Zungo flyerCREATOR
Perfect for designing massive storefront banners and launching digital email lists.
One-Time Payment
- 🖨️ Tiled Printing (Scales A4 Sheets up to Giant A0)
- 📐 Strict 1280x720 Pixel Asset Central Fit
- 🚨 Built-In "Fit to Page" Print Configurations
- 📧 Automated Mozilla Thunderbird Mail Queueing
- 🚫 No Internet Required & Zero Monthly Fees
Business Card Creator
Perfect for quick identity building, sales networking, and staff registries.
One-Time Payment
- 🔲 Direct Interactive Canvas Editing
- 🖨️ Prints Exactly 10 Cards Per A4 Page
- 🔄 Grid Layout Line Toggle (Borders ON/OFF)
- 🔐 Built-In Secure ID Activation Gate
- 🚫 No Internet Required & Zero Monthly Fees
Zungo BarcodeExpress
Design your barcode labels quick and easy. Print 24, 33 or 65 labels per sheet..
One-Time Payment
- 🔲 Direct Interactive Canvas Editing
- 🖨️ Flexible Template Printing (24, 33, or 65 Per Sheet
- 🖨️ Support Standard Barcode Formats & Auto-Generation
- 🔐 Built-In Secure ID Activation Gate
- 🚫 No Internet Required & Zero Monthly Fees
Zungo Besa PRO
Every shilling tracked. 100% offline, zero monthly fees. Stop wondering where your profits went—track every single expense and income instantly with zero internet required..
One-Time Payment
- 📊 Instant Cash Flow Analytics (In & Out)
- 💰 Smart Budget Drawdown (Track 'IN' Funds down to Zero)
- 📈 Automated Profit & Loss Daily Summaries
- 🔐 Built-In Secure ID Activation Gate
- 🚫 No Internet Required & Zero Monthly Fees
What I Do For Your Business
I don't just write lightweight software code. I build complete, standalone offline technical solutions engineered to protect your daily counter retail profits and streamline your accounting workflows.
💻 Desktop Programming
I personally engineer every single application line from scratch. I focus on optimizing lightweight compiled code structures that launch instantly on any Windows PC or laptop, requiring absolutely zero internet background data costs.
🌐 Local Network Routing
I specialize in configuring multi-user synchronized databases over office networks. Using my standalone Database Locator utility, I can map your checkouts to run seamlessly over local routers or shared online drives.
🔌 Hardware Integration
I ensure your software ties flawlessly into your physical equipment. I guide and support you on connecting standard office desktop printers for crisp A4 invoice receipts, electronic cash drawers, and plug-and-play USB barcode scanners.
🎓 Onboarding & Training
I stay with you long after the installation download finishes. I provide complete technical onboarding support, write extensive step-by-step operation manuals, and deliver direct training to ensure your cashiers run the system without mistakes.
⚡ Freeware Release: Zungo Counter Toolkit is Officially Available v1.1.1!
November 9, 2026Updated ZUNGO_COUNTER_TOOLKIT_README.txt to v1.2.0
Added M-Pesa transaction field to Cash Float Balancer. If you have downloaded version 1.0 please update to version 1.1 to take advantage of this new feature.
Streamline your retail desk operations with my new, completely free utility suite—Zungo Counter Toolkit v1.1..1
Engineered to save you time and maximize accuracy at the counter, this lightweight package combines a Cash Float Balancer, an M-Pesa Fees & Margin Calculator, and a continuous 58mm Shelf-Tag Barcode Printer layout all into one tool. Like all Zungo software, it runs 100% offline on your Windows PC with zero internet data costs and zero fees.
Download the 2.9 MB installer on my downloads panel today to optimize your retail setup for free!
🔥 New Product Release: Zungo Besa PRO is Officially Live!
November 7, 2026Take absolute control of your business cash flow! I have officially launched my newest standalone desktop financial ledger—Zungo Besa PRO v1.0.0.0.
Engineered to protect your bottom line, this application lets you log all your incoming funds and outgoings instantly. It features a unique Smart Budget Drawdown engine that tracks designated funds down to zero, alongside automated daily Profit & Loss summaries. Best of all, it keeps your financial data 100% offline with zero monthly subscription bills.
Best of all, I have kept the entire application incredibly lightweight at just 3.6 MB, and it runs 100% offline with zero internet costs. Download the free demo setup file today!
⚙️ Release Highlights:
Ultra-Lightweight Footprint: The complete setup installer file is only 3.6 MB, making it incredibly data-friendly to download onto any Windows PC or laptop.
Expanded Documentation: I have rolled out an updated, highly detailed Besa PRO Quick-Start User Manual to guide you cleanly through your initial ledger account layouts.
Instant Activation Panel: Fully integrated with my secure registration gate. Access trial tokens or lifelong commercial keys instantly by utilizing the "Generate" or "Send Mail" buttons inside the app setup layout.
Download the free demo installer and the freshly expanded manual on my downloads panel today to lock down your counter profits!
🔑 Unified "Activation Help" Framework Deployed
November 7, 2026To deliver smoother onboarding for retail counters, local kiosks, and wholesale desks across Kenya, I have integrated a dedicated Activation Help Guide across all software downloads.
Look for the new 🔑 Activation Help button right next to your installer download rows. This quick 3-step guide walks you through bypassing Windows Defender SmartScreen notifications safely, finding your unique Hardware ID Checker panel, and instantly exporting your registration data file (Registration_Info_[name].txt) straight to our support channels with a single click.
⚡ nWindow Display Optimization Update Is Live!
October 17, 2026Version 2.0.2 Lightweight Framework Release
Updated User Guide Revision: V17102026
I have rolled out a major optimization update for nWindow Display! By streamlining my media engine, I successfully slashed the installer size down from 33.7 MB to a super lightweight 10.6 MB footprint—making it incredibly fast and data-friendly to download on any network.
Turn any standard Windows laptop or desktop monitor into a high-performance digital marketing billboard in just one minute. It runs 100% offline with zero continuous data or streaming costs. Download the lightened demo setup and start showcasing your ads today!
Have questions about Invoice PRO? Need help setting up TouchPOS at your shop? I am here to help! Reach out to me through any of my channels below, and I will assist you immediately.
Get in touch directly with me for instant responses:
For official quotes, corporate licensing inquiries, or technical software documentation:
Email: support@zungo.co.ke
Business Hours
Monday – Friday: 8:00 AM to 5:00 PM
Saturday: 9:00 AM to 1:00 PM
Sunday & Public Holidays: Closed *(Emergency support available for active retail POS subscribers)*
Fill out the quick form below, and I will get back to you within 2 business hours!
Zungo App Studio
Country: Kenya
E-mail: sale@zungo.co.ke
Sale: 0743447540
Contact Me
📩 Contact Me Directly
Have questions about Invoice PRO network setups or setting up barcode scanners? Fill out the form below!
Zungo App Studio • Business Hours: Mon-Fri 8:00 AM - 5:00 PM
Copyright © 2026 Andrias Hammer. All Rights Reserved. All systems run 100% offline.